Michael Niedermayer
529540759f
avcodec/simple_idct_template: adjust coeffs for 12bit idct
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This prevents overflows with 12bit jpegs
Fixes Ticket2952
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
ae57e82469
avcodec/dsputil: add 12bit simple idct
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Will be needed for jpeg
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Diego Biurrun
88bd7fdc82
Drop DCTELEM typedef
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It does not help as an abstraction and adds dsputil dependencies.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
12 years ago
Ronald S. Bultje
c23acbaed4
Don't use ff_cropTbl[] for IDCT.
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Results of IDCT can by far outreach the range of ff_cropTbl[], leading
to overreads and potentially crashes.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
13 years ago
Michael Niedermayer
9096a2760f
simpleidct: fix project name.
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"Copyright (c) 2001 Michael Niedermayer" and "part of Libav" is not likely
not only am i not a libav developer there also was no libav in 2001
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Ronald S. Bultje
f78cd0c243
prores-idct: fix overflow in c code.
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Fix the fate ref for prores-422_proxy by reverting the changes to it
in commit f492df0927
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
13 years ago
Mans Rullgard
2cc4f3b21f
simple_idct: whitespace cosmetics
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Mans Rullgard
a402f10959
simple_idct: make repeated code a macro
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Mans Rullgard
e7bcc5baf7
simple_idct: change 10-bit add/put stride from pixels to bytes
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This matches other dsputil functions and simplifies calls.
Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Mans Rullgard
e7a972e113
simple_idct: add 10-bit version
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago